Methods of demulsifying employing condensates as demulsifiers for oil-in
water emulsions
    51.
    发明授权
    Methods of demulsifying employing condensates as demulsifiers for oil-in water emulsions 失效
    使用冷凝剂作为水分乳化剂的分解剂的方法

    公开(公告)号:US5234626A

    公开(公告)日:1993-08-10

    申请号:US827170

    申请日:1991-02-11

    CPC分类号: C08G71/00 B01F17/005

    摘要: The present invention relates to methods of demulsifying employing condensates as demulsifiers for oil-in-water emulsions and prepared fromA) a precondensate from one or more trialkanolamines of the general formula I ##STR1## in which R.sup.1 to R.sup.3 denote the same or different 1,2-alkylene groups of from 2 to 4 carbon atoms, andB) from 0.1 to 30% w/w, based on said precondensate, of one or more of the following compounds II:a) urea or a urea derivative of the general formula IIa ##STR2## b) a urea derivative of the general formula IIb ##STR3## c) a urethane of the general formula IIc ##STR4## and/or d) a urethane of the general formula IId ##STR5## in which R.sup.1 is hydrogen, C.sub.1 -C.sub.20 -alkyl or C.sub.2 -C.sub.20 -alkenyl,R.sup.2 and R.sup.3 are the same or different and denote hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sup.4 is C.sub.1 -C.sub.4 -alkyl andR.sup.5 is C.sub.1 -C.sub.12 -alkylene.

    摘要翻译: 本发明涉及使用缩合物作为水包油乳液的破乳剂进行破乳的方法,由A)来自一种或多种通式Ⅰ(I)的三链烷醇胺的预缩合物制备,其中R 1至R 3表示相同的 或不同的2至4个碳原子的1,2-亚烷基,以及B)0.1至30%w / w(基于所述预缩合物)一种或多种下列化合物II:a)脲或脲衍生物 通式IIa(IIa)的脲衍生物b)通式IIb的脲衍生物(IIb)c)通式IIc(IIc)的氨基甲酸酯和/或d)氨基甲酸酯 其中R 1是氢,C 1 -C 20 - 烷基或C 2 -C 20 - 链烯基,R 2和R 3相同或不同,表示氢或C 1 -C 4烷基,R 4是C 1 -C 4烷基, C4-烷基,R5是C1-C12-亚烷基。